16–8 Statistics
Programs
File name 32sii-Manual-E-0424
Printed Date : 2003/4/24 Size : 17.7 x 25.2 cm
Memory Required:
270 bytes: 174 for program, 96 for data (statistic. registers 48).
Program instructions:
1.
Key in the program routines; press
when done.
2.
Press
W
and select the type of curve you wish to fit by pressing:
S for a straight line;
L for a logarithmic curvy.;
E for an exponential curve; or
P for a power curve.
3.
Key in
x
–value and press
f
.
4.
Key in
y
–value and press
f
.
5.
Repeat steps 3 and 4 for each data pair. If you discover that you have
made an error after you have pressed
f
in step 3 (with the
&@
value
prompt still visible), press
f
again (displaying the
%@
value
prompt)
and press
W
U to
undo
(remove) the last data pair. If you discover that
you made an error after step 4, press
W
U. In either case continue at
step 3.
6.
After all data are keyed in, press
W
R to see the correlation coefficient,
R
.
7.
Press
f
to see the regression coefficient
B
.
8.
Press
f
to see the regression coefficient
M
.
9.
Press
f
to see the
%@
value
prompt for the
x
ˆ
,
y
ˆ
–estimation routine.
10.
ff you wish to estimate
y
ˆ
based on
x
, key in
x
at the
%@
value
prompt,
then press
f
to see
y
ˆ
(
&@
).
11.
If you wish to estimate
x
ˆ
based on
y
, press
f
until you see the
&@
value
prompt, key in
y
, then press
f
to see
x
ˆ
(
%@
).
12.
For more estimations, go to step 10 or 11.
13.
For a new case, go to step 2.
Variables Used:
B
Regression coefficient (
y
–intercept of a straight line);